//******************************************************************
//******************************************************************
//**********          ANts Peer To Peer Sources        *************
//
// ANts P2P realizes a third generation P2P net. It protects your
// privacy while you are connected and makes you not trackable, hiding
// your identity (ip) and crypting everything you are sending/receiving
// from others.

// Copyright (C) 2004  Roberto Rossi

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

package ants.p2p.messages;

import ants.p2p.Message;
import java.math.BigInteger;
import java.security.*;
import java.security.spec.*;
import java.security.interfaces.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import javax.crypto.interfaces.*;
import com.sun.crypto.provider.SunJCE;

public class SecurityRequestMessage extends Message {
  private String skip1024Modulus;
  private String skip1024Base;
  private String requirerPubKeyY;
  private String requirerPubKeyP;
  private String requirerPubKeyG;

  public SecurityRequestMessage(Message m, BigInteger skip1024Modulus,
                                BigInteger skip1024Base,
                                PublicKey requirerPubKey) {
    super(m);
    this.skip1024Base = skip1024Base.toString();
    this.skip1024Modulus = skip1024Modulus.toString();
    this.requirerPubKeyY = ((DHPublicKey)requirerPubKey).getY().toString();
  }

  public SecurityRequestMessage(BigInteger skip1024Modulus,
                                BigInteger skip1024Base,
                                PublicKey requirerPubKey) {
    super();
    this.skip1024Base = skip1024Base.toString();
    this.skip1024Modulus = skip1024Modulus.toString();
    this.requirerPubKeyY = ((DHPublicKey)requirerPubKey).getY().toString();
  }


  public BigInteger getG(){
    return new BigInteger(this.skip1024Base);
  }

  public BigInteger getP(){
    return new BigInteger(this.skip1024Modulus);
  }

  public PublicKey getRequirerPubkey() throws Exception{
    DHPublicKeySpec requirerPubKeySpec = new DHPublicKeySpec(new BigInteger(
        requirerPubKeyY), this.getG(), this.getP());
    return KeyFactory.getInstance("DH").generatePublic(requirerPubKeySpec);
  }
}
